Eingyi Drop

From SpeedSouls - A Dark Souls Speedrunning Wiki

The Eingyi Drop is a sequence break in Dark Souls that allows the player to reach the Centipede Demon boss room by going out of bounds near the Daughter of Chaos bonfire using Eingyi's grab attack and Fall Control, skipping Ceaseless Discharge and Demon Firesage in the process. Getting out of bounds using an egg carrier grab has been known for a long time, but a consistent and useful setup was only found in November 2016 by Flex.